1 . All ______ for Chinese Young Volunteers Association are ready to work for the country.

A．candidates

B．employers

C．interviewers

D．professors

2 . After Mia won the first prize, she expressed her _____to her teacher and classmates.

A．gratitude

B．feature

C．candidate

D．evolution

3 . Three ___________ contested the leadership of the company.

A．candidates

B．operators

C．envelopes

D．origins

4 . Taking public transport can help reduce the _____ of harmful gas.

A．candidate

B．feature

C．emission

D．evolution

6 . My uncle is a ________ of the middle school's headmaster; he is preparing for the election.

A．boarder

B．moderator

C．operator

D．candidate

7 . To get the job, the _______ had to make a short video showing how much they knew about the Great Barrier Reef.

A．operators

B．candidates

C．conservationist

D．manager